upstream commit

Remove NULL-checks before sshbuf_free().

ok djm@

Upstream-ID: 5ebed00ed5f9f03b119a345085e8774565466917
diff --git a/ssh-ecdsa.c b/ssh-ecdsa.c
index 2c76f8b..74912df 100644
--- a/ssh-ecdsa.c
+++ b/ssh-ecdsa.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-ecdsa.c,v 1.11 2014/06/24 01:13:21 djm Exp $ */
+/* $OpenBSD: ssh-ecdsa.c,v 1.12 2015/12/11 04:21:12 mmcc Exp $ */
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
  * Copyright (c) 2010 Damien Miller.  All rights reserved.
@@ -99,10 +99,8 @@
 	ret = 0;
  out:
 	explicit_bzero(digest, sizeof(digest));
-	if (b != NULL)
-		sshbuf_free(b);
-	if (bb != NULL)
-		sshbuf_free(bb);
+	sshbuf_free(b);
+	sshbuf_free(bb);
 	if (sig != NULL)
 		ECDSA_SIG_free(sig);
 	return ret;
@@ -179,10 +177,8 @@
 
  out:
 	explicit_bzero(digest, sizeof(digest));
-	if (sigbuf != NULL)
-		sshbuf_free(sigbuf);
-	if (b != NULL)
-		sshbuf_free(b);
+	sshbuf_free(sigbuf);
+	sshbuf_free(b);
 	if (sig != NULL)
 		ECDSA_SIG_free(sig);
 	free(ktype);